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Galaxy S6 Active slow in sending and receiving text message, other issues

S6 Edge

Hello and welcome to another #GalaxyS6 post that answers some questions shared by our community. Three out of five issues today tackles SMS-related problems. We hope that our solutions can help others with similar issues.

  1. Galaxy S6 lock screen issue
  2. Galaxy S6 Edge not receiving long SMS
  3. Galaxy S6 Active slow in sending and receiving text message
  4. Verizon Galaxy S6 cannot send SMS
  5. Galaxy S6 boot problem after updating to Android Marshmallow

If you are looking for solutions to your own #Android issue, you can contact us by using the link provided at the bottom of this page, or you can install our free app from Google Play Store.


 

Problem #1: Galaxy S6 lock screen issue

My husband and I have scoured the internet for a solution to the issue I’m having, and have found absolutely nothing about it. I’m hoping you can help.

To disclaim, we have both a Toyota Prius and a Nissan Altima, and the issue happens in both cars. I always pair my phone with the bluetooth and use either Pandora or Google Music to listen to my music while I drive. I often also have Google Maps running at the same time for directions.

After the music has been playing for awhile (maybe 15 – 20 minutes) when I go to check my phone (like to switch a Pandora station or to check the map in navigation), the screen doesn’t want to turn on. I’ll hit the home button and it lags for several seconds before the lock screen shows up, but then the lock screen appears for maybe half a second before turning black again. If the screen stays on for enough time for me to swipe to unlock, it’s still completely non-responsive and doesn’t unlock before going black again. Sometimes the screen doesn’t come on at all when I hit the home button, even though the music is still playing just fine. Sometimes I try to restart the phone and it doesn’t respond either (but, re-starting the phone when I’m driving and need directions to where I’m going is really not ideal).

Instead of hitting the home button, I have tried using the side button to turn on the screen instead and it does the same thing. When this happens, it happens between 5-10 times before the screen turns itself on, often going straight to the home screen (skipping the lock screen altogether) and it then usually does something wonky like zooming in on the lock or home screen image, freezing for a few seconds, and then proceeding to function like nothing is wrong.

This only ever happens in the car (which is a lot) and happens pretty frequently… maybe 5x in a normal week. It happens both when the phone is charging in the car and when it’s not charging. It almost exclusively happens when I have music and maps running together, although it has definitely happened when I’m just running a music app. It still happens even when I only have the music and maps apps running together and have closed everything else. I’ve done a soft reset and cleared the cache multiple times, but nothing seems to fix this particular issue. I don’t know if it’s the apps themselves, the phone system, the bluetooth, or something else. Can you help? Thanks! — Jen

Solution: Hi Jen. The lock screen behavior you’re describing here happens on many devices from time to time across all sorts of Samsung phones. Even a personal Samsung phone (Note 4) of a colleague does it sometimes although not in the same frequency as yours. We’ve also noticed this same exact issue mentioned in another Android forum somewhere so we know that this issue is not isolated to your phone. The cause of this behavior can range from poor memory/RAM management to third party apps, to a firmware glitch.

If RAM/memory management is to blame, the best way to fix it is to ensure that you do a factory reset and then minimize the number of apps running both actively and in the background.

The first thing that you should try though is to check if a third party app may be to blame. You can do so by booting the phone in safe mode while playing music via Google Music and connecting via Bluetooth. If Pandora app was installed after the initial phone setup, you shouldn’t be able to use it in safe mode. If the issue fails to occur while in safe mode, that’s a confirmation of our hunch that one of your installed apps is to blame. You then want to uninstall apps until the issue is gone. Here are the steps to boot your S6 in safe mode:

  • Press and hold the Volume Down and Power keys for 20 to 30 seconds.
  • Once you see the Samsung logo, release the Power key immediately but continue pressing the Volume Down key.
  • Your phone should continue booting up and you will be prompted to unlock your phone as usual.
  • You will know if the phone successfully booted in safe mode if the text “Safe mode” is displayed at the lower-left corner of the screen.

For easy reference, we’re also posting the steps on how to do a factory reset:

  • Turn off your Samsung Galaxy S6 Edge.
  • Press and hold the Volume Up, Home and Power keys together.
  • When the device powers on and displays ‘Power on logo’, release all keys and the Android icon will appear on the screen.
  • Wait until the Android Recovery Screen appears after about 30 seconds.
  • Using the Volume Down key, highlight the option, ‘wipe data/factory reset’ and press the Power key to select it.
  • Press the Volume Down button again until the option ‘Yes — delete all user data’ is highlighted and then press the Power key to select it.
  • After the reset is complete, highlight ‘Reboot system now’ and hit the Power key to restart the phone.

Problem #2: Galaxy S6 Edge not receiving long SMS

Hello. I’m having text messaging issues. I’ve read the troubleshooting guides related to Galaxy S6 Edge users not being able to send/receive texts from iPhone users, but that’s not *exactly* my problem. My sister has an iPhone 6 (software is up to date) and she and I can send and receive texts from one another just fine – if they’re short. When she tries to send me a text message that is longer than a few words, I never get the message. Later she will ask me something about it and will have to send me a screen shot of the message because it never came through to me. Short messages work fine, pictures send without difficulty, even video sends without issues, it’s ONLY longer text messages. She checked her phone and iMessage is turned off for my phone (my contact is not listed as an iPhone user – though I did have one prior to this phone, and I have iMessage on other Apple devices I own).

Any idea why we are having this issue? It’s very frustrating. Thank you for any insight you can provide! — Erika

Solution: Hi Erika. Carriers often convert SMS into MMS once a message goes past a specified character limit. If MMS service is not activated on your account, or when mobile data or Wi-Fi connection (depending on how your own carrier’s MMS scheme works) is disabled, you will not be able to receive message at all. We may be mistaken though so make sure to check with your carrier why you are not receiving longer text messages as they may have other reasons for not transmitting them to you.

Problem #3: Galaxy S6 Active slow in sending and receiving text message

For a few months, I’ve been having a few issues with my S6 Active and they happen on or off Wi-Fi. *We have an AT&T Wi-Fi tower and I can be right in front of it and these issues will occur.

  1. Multiple “failed to send text” per day. I must turn off my phone, wait 30 sec or so and then turn it back on. There have been times that I’ve had to do it twice to get it to work.
  2. Outgoing or incoming text messages are slow, delayed by hours or not received at all.
  3. I will be surfing the Web and all of a sudden I can’t open anything. The pages are in download purgatory. I have to turn off my phone and wait.

Again, whether or not I’m connected to Wi-Fi doesn’t seem to matter. These issues can happen numerous times per day anywhere and anytime. I turn off most unused apps, try to keep my phone cleared out and I already tried the update. — Jeni

Solution: Hi Jeni. Looks like this is a phone issue and not a network- or Wi-Fi-related one. Since you experience multiple issues at once, restoring the default settings of everything in your phone sounds like the best solution that you can do. The real cause of the problem can be anything at this point so “cleaning” the phone is your first priority. You can do that by doing a factory reset (steps provided above).

Now, there’s a chance that a bad third party app, or even a malware is responsible for the troubles. After doing a factory reset, you want to reconsider what app to install back. We advise against re-installing everything back as that means re-introducing the source of troubles to the system again. You don’t want to experience the same problems after a factory reset. Instead, keep installed apps to a minimum and throw away unused or least used apps. Any of them may be responsible for introducing the glitch or malware to your phone. We say you stick to official apps only. If you are fond of online shopping apps for example, make sure that you only use official apps from retailers you trust. Don’t install games or any other apps from unknown developers.

Problem #4: Verizon Galaxy S6 cannot send SMS

I recently switched service from Verizon to T-Mobile and the gentleman helping me said that I could keep my Verizon phone and the service would still work. I am able to make and receive calls and I am also able to receive texts, but I am unable to send out texts. I called the service center and talked to one of the IT people there but she couldn’t help me either. She had also said that she was going to take it a step further and promised that I would be receiving a call within two days. It’s been several weeks and I never received that call. After that, I brought the phone back to the T-Mobile and the same gentleman who had helped me before switched the SIM card and the texting worked until I left the store. There also seems to be an error message that never goes away stating that the SIM card is not from Verizon. I saw your troubleshooting article and attempted to use that but it didn’t work for me so I was wondering if you had any advice or could help me fix this. I do not have the money for a new phone. — Stephanie

Solution: Hi Stephanie. A lot of users have complained of being unable to send text message after switching from Verizon to other providers. Your phone may have been SIM unlocked, which means that it can now use other carrier’s network, but the firmware or operating system running is still Verizon. That’s where the real of the problem lies.

First let’s talk of workarounds. Some Android forums mention this same exact problem for both new and old Verizon phones and some users seemed to have found a solution by going under Settings > Wireless/More > Cellular network settings > Prefered network type and change to GSM/UMTS. The idea is to ensure that your phone uses either EDGE or HSPA+ (whichever is available) in order to send SMS. We noticed that phones running Verizon firmware won’t send text when 4G is enabled.

Another good thing to try is by changing the Message Center number from Verizon to T-Mobile, which is +12063130004. If the issue remains, a more drastic solution may be needed — rooting. Please find online resources on how to root your S6 using Google.

Problem #5: Galaxy S6 boot problem after updating to Android Marshmallow

So, January ending i received a message to update my system which i did. i think its Marshmallow something, I’m not sure. Then after updating and everything, exactly the next day, i switched off my phone and switched it back on and it said Android is starting…optimizing xxx of xxx. i thought this was normal. So left it and slept for four hours, woke up and it was the same thing. I restarted and it would completely boot and it goes back to that page after a minute. Checked on this forum for solution but I’m not really finding the exact solution so i was fidgeting with it and did the recovery thing.

I’m not sure exactly how i did it but the problem stopped. And since then I’ve being so scared to put off my phone. Then this morning i accidentally put it off and the problem of optimizing xxx of xxx is back. i was so frustrated. i don’t know what to do. My phone is my life. Also, I’m currently in China where most people don’t speak English. How do i solve this problem and not be scared of switching off my phone. This is messing up my day. — Sedem

Solution: Hi Sedem. If your phone was able to go past the boot screen and load the operating system normally afterwards, that means that you should be able to boot it back up normally when it happens again. We understand your anxiety of the issue occurring in the future so you have to make sure that it won’t happen again. You can do that by keeping the phone’s cache partition fresh every few months. Sometimes, corrupted or outdated cache can prevent apps or even the operating system from starting right. Deleting the cache partition regularly is a good way to prevent boot problems. Here’s how it’s done:

  • Turn off the device.
  • Press and hold the following three buttons at the same time: Volume Up key, Home key, and Power key.
  • When the phone vibrates, release the Power key but continue to press and hold the Volume Up key and the Home key.
  • When the Android System Recovery screen appears, release the Volume Up and Home keys.
  • Press the Volume Down key to highlight ‘wipe cache partition.’
  • Press the Power key to select.
  • When the wipe cache partition is complete, ‘Reboot system now’ is highlighted.
  • Press the Power key to restart the device.

 


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